SUSE update for python-PyYAML
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU54520
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-14343
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input when processing untrusted YAML files through the full_load method or with the FullLoader loader. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the system by abusing the python/object/new constructor.
Note, the vulnerability exists due to incomplete patch for vulnerability #VU25823.
Update the affected package python-PyYAML to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Public Cloud: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15
SUSE Linux Enterprise High Performance Computing: 15 - 15-LTSS
SUSE Linux Enterprise Server: 15-LTSS - 15-SP2
SUSE Linux Enterprise Server for SAP: 15-SP2
python3-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
python3-PyYAML: before 5.1.2-150000.3.6.1
python2-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
python2-PyYAML: before 5.1.2-150000.3.6.1
python-PyYAML-debugsource: before 5.1.2-150000.3.6.1
python-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20222841-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Input validation error
EUVDB-ID: #VU25823
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1747
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of user-supplied input when processing untrusted YAML files passed via the "full_load" method or with the "FullLoader" loader. A remote attacker can pass specially crafted input to the application and execute arbitrary code by abusing the python/object/new constructor.
MitigationUpdate the affected package python-PyYAML to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Public Cloud: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15
SUSE Linux Enterprise High Performance Computing: 15 - 15-LTSS
SUSE Linux Enterprise Server: 15-LTSS - 15-SP2
SUSE Linux Enterprise Server for SAP: 15-SP2
python3-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
python3-PyYAML: before 5.1.2-150000.3.6.1
python2-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
python2-PyYAML: before 5.1.2-150000.3.6.1
python-PyYAML-debugsource: before 5.1.2-150000.3.6.1
python-PyYAML-debuginfo: before 5.1.2-150000.3.6.1
External linkshttp://www.suse.com/support/update/announcement/2022/suse-su-20222841-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
